Schirmer’s test detects abnormality of which nerve?
Correct Answer: Facial
Description: (Refer: AK Khurana Comprehensive Ophthalmology, 6th edition, pg no. 389)*Schirmer's test is used for the production of tear by lacrimal glands*Preganglion secretory fibers for lacrimal gland arise from the lacrimatory nucleus and pass through the facial nerve, then to its greater petrosal branch. Greater petrosal nerve forms nerve to the pterygoid canal to reach pterygopalatine ganglion. Postganglionic fibers supply lacrimal gland*Thus, lesion in any structure of this pathway will have positive Schirmer's test
Category:
Ophthalmology
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now